将目录中的所有javascript文件包含到angularjs中的html文件中？咕噜咕噜？

Question

In my AngularJS app, I've many controllers js files.

These controllers ( one.ctrl.js , two.ctrl.js , ... ) needs to be included in my index.html file.

Directory Structure:

app/
   js/
      controllers/
         one.ctrl.js
         two.ctrl.js

Currently, above js files are included in index.html file as follows.

index.html:

<!--   other html components   -->

<script src="js/controllers/one.ctrl.js"/>
<script src="js/controllers/two.ctrl.js"/>
</body>
</html>

There are gonna be more *.ctrl.js files which are required to be included in index.html .

I need a way to automatically include all the *.ctrl.js files in controllers directory to index.html .

Findings:

From some SO questions,

Load JavaScript and CSS files in folders in AngularJS

How can I include all JavaScript files in a directory via JavaScript file?

I found that it cannot be done automatically and needs some server side scripting or build tools.

My Question:

Currently, I'm using yeoman which include grunt for build tool. So, my question is, How can those javascript files in a directory be automatically included in a html file?

Answer 1

You could use the grunt-include-source plugin

Using it you can define templates like these :

html: {
    js: '<script src="{filePath}"></script>',
    css: '<link rel="stylesheet" type="text/css" href="{filePath}" />',
  }

in your html file which will be expanded to include all your source js and css files present in your source location which can be configured in the grunt task

Answer 2

Answering the general question of adding source files to index.html on demand and automatically and elaborating on the use of grunt-include-source .

This is for the following folder structure:

MyProject
|
+-- index.js
+-- Gruntfile.js
+-- package.json
+-- //other files
|
+--+ app
   +-- //app files (.html,.js,.css,.*)

1. Install with npm i -D grunt-include-source grunt-contrib-watch .

2. In your Gruntfile.js , add grunt.loadNpmTasks('grunt-include-source');

3. Then you have to add a bunch of tasks to your Gruntfile.js , after which it should look like this:

    module.exports = function (grunt) { grunt.initConfig({ pkg: grunt.file.readJSON('package.json'), //... watch: { //... includeSource: { // Watch for added and deleted scripts to update index.html files: ['app/**/*.js','app/**/*.css'], tasks: ['includeSource'], options: { event: ['added', 'deleted'] } } }, includeSource: { options: { //This is the directory inside which grunt-include-source will be looking for files basePath: 'app' }, app: { files: { //Overwriting index.html 'app/index.html': 'app/index.html' } } } }); //... grunt.loadNpmTasks('grunt-contrib-watch'); grunt.loadNpmTasks('grunt-include-source'); //... //Include sources, run the server, open the browser, and watch. grunt.registerTask('default', ['includeSource', 'watch']); }; 

4. In your index.html , add this ( the file path here looks inside the base path set in Gruntfile.js ):

    <!-- include: "type": "css", "files": "**/*.css" --> <!-- /include --> <!-- include: "type": "js", "files": "**/*.js" --> <!-- /include --> 

5. Finally, on the command line:

    grunt 

This should start off all tasks in sequence, and your index.html should be updated accordingly when a JS or CSS is added or removed.

This is how your index.html might look like with a small number of files:

<!-- include: "type": "css", "files": "**/*.css" -->
<link href="styles.css" rel="stylesheet" type="text/css">
<!-- /include -->
<!-- include: "type": "js", "files": "**/*.js" -->
<script src="_routes/routes.js"></script>
<script src="scripts/app.js"></script>
<!-- /include -->

Links:

• https://www.npmjs.com/package/grunt-include-source
• https://ajsblackbelt.wordpress.com/2014/07/07/free-from-include/
• https://jhipster.github.io/tips/002_tip_include_js_grunt.html

Answer 3

You can use something like this:

(function loadScript() {
    var head = document.getElementsByTagName("head")[0];
    var done = false;

    var directory = 'libraries/';
    var extension = '.js';
    var files = ['functions', 'speak', 'commands', 'wsBrowser', 'main']; 

     for (var file of files){ 
        var path = directory + file + extension; 
        var script = document.createElement("script");
        script.src = path;

        script.onload = script.onreadystatechange = function() {
        // attach to both events for cross browser finish detection:
        if ( !done && (!this.readyState ||
           this.readyState == "loaded" || this.readyState == "complete") ) {
           done = true;
           // cleans up a little memory:
           script.onload = script.onreadystatechange = null;
           // to avoid douple loading
           head.removeChild(script);
        }
    };
  head.appendChild(script); 
  done = false;
 }
})();